TASK 72-45-30-040-001-C00 HPT Stage 2 Rotor Assembly - Disassemble The HPT Stage 2 Rotor Assembly, Disassembly-001

DMC:V2500-A0-72-45-3000-00D-530A-B|Issue No:002.00|Issue Date:2018-11-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

V2500-A5

Common Information

TASK 72-45-30-040-001-C00 HPT Stage 2 Rotor Assembly - Disassemble The HPT Stage 2 Rotor Assembly, Disassembly-001

General

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.

Remove and discard the lockwire before parts are disconnected or removed.

Discard all rubber seal rings, cotter pins and seal washers removed in this procedure.

Refer to TASK 72-45-00-990-501 (DESCRIPTION AND OPERATION) for a sectional view of the stage 2 turbine rotor assembly.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 1F10027 Heater control unit0AM53IAE 1F100271
IAE 1P16010 Fixture0AM53IAE 1P160101
IAE 1P16039 Heater0AM53IAE 1P160391
IAE 1P16063 Fixture0AM53IAE 1P160631
IAE 1P16140 Support base0AM53IAE 1P161401
IAE 1P16166 Base plate0AM53IAE 1P161661
IAE 1P16366 Fixture0AM53IAE 1P163661
IAE 1P17026 Lift fixture0AM53IAE 1P170261

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-30-040-079 Prepare the Stage 2 Turbine Rotor Assembly for Removal from the Base and Install the Fixture

    1. Refer to Figure and Figure.

    2. Put the ring assembly of the IAE 1P16063 Fixture 1 off on the engine retaining plate and move it behind the airseal.

    3. Push in a hook assembly and turn it to secure the blade leading edge.

    4. Do Step for three additional hook assemblies and install them at 90 degree intervals.

    5. Tighten six wingnut clamps to hold the assembly together.

      NOTE

      The three legs on the back of the fixture are used to permit the assembly to be set down on a work plate.

    6. Do Step for the remaining hook assemblies to hold all the blades in place.

    2. SUBTASK 72-45-30-040-080 Install the Fixture to the Stage 2 Turbine Rotor Assembly

    1. Refer to Figure.

    2. Loosen the three hand knobs on the IAE 1P17026 Lift fixture 1 off.

    3. Turn the three hooks toward the center of the fixture.

    4. Lower the fixture in to the rear inner diameter of the rotor.

    5. Turn all the hooks so they touch on the inner diameter recess.

    6. Tighten the three hand knobs.

    3. SUBTASK 72-45-30-040-081 Remove the Stage 2 Turbine Rotor Assembly from the Base

    1. Refer to Figure.

    2. Attach a hoist to the fixture.

    3. Lift the stage 2 turbine rotor assembly with the hoist.

    4. Put the stage 2 turbine rotor assembly above the IAE 1P16166 Base plate.

    4. SUBTASK 72-45-30-040-082 Install the Stage 2 Turbine Rotor Assembly in the Base Plate

    1. Refer to Figure.

    2. Put the stage 2 turbine hub, front inner diameter bore down on the diameter of the IAE 1P16166 Base plate 1 off.

    3. Remove the IAE 1P16063 Fixture and IAE 1P17026 Lift fixture from the assembly.

    5. SUBTASK 72-45-30-040-083 Remove the Stage 2 HPT Blade Assemblies, Seals and Dampers

    1. Refer to Figure.

    2. Lightly hit the stage 2 HPT blade assemblies with a rawhide mallet and remove the blades from the stage 2 turbine hub.

    3. Remove the stage 2 HPT seals and dampers.

    6. SUBTASK 72-45-30-040-084 Install the Fixture

    1. Install the IAE 1P17026 Lift fixture 1 off. Refer to Step.

    7. SUBTASK 72-45-30-040-085 Install the Stage 2 Turbine Rotor Assembly in the Support Base

    1. Refer to Figure.

    2. Attach the hoist to the IAE 1P17026 Lift fixture.

    3. Remove the stage 2 turbine rotor assembly from the base plate.

    4. Put the stage 2 turbine rotor assembly in the IAE 1P16140 Support base 1 off.

    8. SUBTASK 72-45-30-040-086 Install the Fixture on to the Stage 2 Turbine Hub

    1. Refer to Figure.

    2. Remove the support detail from the IAE 1P16366 Fixture 1 off.

    3. Remove the clevis and bar assembly from the bottom end of the pilot (flanged end).

    4. Loosen the nuts holding the three clamps in the pilot.

    5. Push the clamps to move the dowel pins from the holes in the pilot.

    6. Turn the clamps to align the clamp feet within the pilot body envelope for installation in the stage 2 turbine rotor assembly. The dowel pin in the threaded end of the clamp is now located at 90 degrees to the arrow in the adjacent pilot face.

    7. Attach a hoist to the fixture.

    8. Lift the fixture with the hoist and then lower the pilot of the fixture into the ID of the stage 2 turbine hub.

    9. Turn the fixture clamps to engage the dowel pins in the pilot holes. The dowel pins in the threaded end of the clamps are now in line with the arrows in the adjacent pilot face.

    10. Tighten the three nuts to lock the clamps in position.

    9. SUBTASK 72-45-30-040-087 Install the Stage 2 Turbine Rotor Assembly in to the Heater

    1. Refer to Figure.

    2. Attach a hoist to the bar on the fixture.

    3. Remove the stage 2 turbine rotor assembly from the support base.

    4. Move the stage 2 tubrine rotor assembly above the IAE 1P16039 Heater 1 off.

    5. Lower the stage 2 turbine rotor assembly, small end down, on to the heater.

    6. Put the fixture pilot in to the heater ID.

    7. Turn the stage 2 turbine rotor assembly and align the holes in the heater with the threaded holes in the fixture.

    8. Clamp the fixture to the heater with the fixture capscrews.

    9. Make sure that the thermocouple touches the stage 2 turbine hub.

    10. Connect the power line and the thermocouple fittings to the respective fittings of the IAE 1F10027 Heater control unit 1 off.

    11. Remove the clevis and bar assembly from the pilot in the fixture.

    10. SUBTASK 72-45-30-040-088 Remove the Stage 2 HPT Locks and Retainers (Pre SBE 72-0399)

    1. Refer to Figure.

    2. Remove the stage 2 HPT locks and retainers, two each, from the stage 2 turbine hub.

    11. SUBTASK 72-45-30-040-097 Remove the Stage 2 HPT Locks and Retainers (SBE 72-0399)

      CAUTION

      WHILE STRAIGHTENING THE RETAINER TAB, EXTREME CARE MUST BE TAKEN TO AVOID DAMAGE TO THE HPT STAGE 2 HUB SLOTS.

    1. Refer to Figure.

      2. Remove the Stage 2 HPT locks and retainers, four each, from the stage 2 turbine hub.

        NOTE

        A lint free cloth can be used to protect adjacent surfaces.

      1. Straighten the retainer tab using a drift and mallet. It is recommended to use a drift made of soft material such as aluminum or brass. Apply gentle force on the mallet to prevent damage to the hub.

      2. Slightly push the straightened retainer tab into the slot to disengage the contact between retainer tab and Stage 2 HPT retaining plate. Refer to Figure.

      3. Gently remove the lock by hand.

        NOTE

        If the retainer is not accessible, you can remove it after removing the retaining plate.

      4. Remove the retainer.

    12. SUBTASK 72-45-30-040-089 Install the Fixture on to the Stage 2 Turbine Rotor Assembly

    1. Refer to Figure.

    2. Put the ring (clamp) of the IAE 1P16010 Fixture 1 off, threaded bolt hole up, on the seal flange of the blade retaining plate.

    3. Attach the eight clamps with the capscrews and washers around the ring to capture the blade retaining plate seal flange.

    4. Put the clamps so the side with longer taper contacts the ring (clamp).

    5. Tighten the capscrews to hold the clamps in place.

    6. Install the ring (flanged) over the ring (clamp).

    7. Attach the ring (flanged) with the capscrews and the washers.

    8. Tighten the flange bolts until the gap between the ring (flanged) and the ring (clamp) is removed.

    13. SUBTASK 72-45-30-040-090 Remove the Stage 2 HPT Blade Retaining Plate from the Stage 2 Turbine Hub

      NOTE

      Parts may be heated to 300 deg F (149 deg C) maximum to permit disassembly. Minimum temperature differential to be 50 deg F (28 deg C).

    1. Heat the stage 2 turbine hub with the heater.

    2. Chill the stage 2 blade retaining plate with dry ice.

    3. Turn the stage 2 blade retaining plate to the unlock position with the IAE 1P16010 Fixture. Hit the turn lugs lightly with a mallet to turn the fixture.

    4. Remove the stage 2 blade retaining plate and the fixture.

    5. Remove the plate from the fixture.

    6. Remove the stage 1 and 2 HPT seal from the stage 2 blade retaining plate. Discard the seal.

    14. SUBTASK 72-45-30-040-091 Remove the Stage 2 Turbine Hub from the Heater and Set it on a Pallet

    1. Refer to Figure.

    2. Install the bar and clevis on the pilot hole of the IAE 1P16366 Fixture 1 off.

    3. Attach a hoist to the fixture.

    4. Remove the fixture capscrews, Figure.

    5. Lift the hub from the heater with the hoist and the sling.

    6. Attach the lower bar and clevis to the pilot of the fixture (flanged end).

    7. Attach a hoist to the bar.

    8. Turn the stage 2 turbine hub with the hoists so that the large end is down.

    9. Remove the bar and clevis from the lower end.

    10. Lower the stage 2 turbine hub on to a pallet.

    11. Remove the fixture from the stage 2 turbine hub.

    15. SUBTASK 72-45-30-040-092 Remove the Stage 2 HPT Metering Plugs and Heat Shield

    1. Refer to Figure.

    2. Remove the stage 2 HPT metering plugs from the inner diameter of the hub.

    3. Remove the stage 2 HPT heat shield.

    16. Figure: The Stage 2 Turbine Rotor Assembly in the IAE 1P16140 Support Base

    The Stage 2 Turbine Rotor Assembly in the IAE 1P16140 Support Base

    Figure: Install the IAE 1P16063 Fixture

    Install the IAE 1P16063 Fixture

    Figure: Install the IAE 1P17026 Fixture

    Install the IAE 1P17026 Fixture

    Figure: Install the Stage 2 Turbine Rotor Assembly in to the IAE 1P16166 Base Plate

    Install the Stage 2 Turbine Rotor Assembly in to the IAE 1P16166 Base Plate

    Figure: Install the Stage 2 Turbine Rotor Assembly in to the IAE 1P16140 Support Base

    Install the Stage 2 Turbine Rotor Assembly in to the IAE 1P16140 Support Base

    Figure: Install the IAE 1P16030 Fixture

    Install the IAE 1P16030 Fixture

    Figure: Install the IAE 1P16010 Fixture

    Install the IAE 1P16010 Fixture

    Figure: Remove the Locks and the Retainers

    Remove the Locks and the Retainers

    Figure: Lower the Stage 2 Turbine Rotor Assembly on to a Pallet

    Lower the Stage 2 Turbine Rotor Assembly on to a Pallet

    Figure: Remove the Metering Plugs and the Heat Shield

    Remove the Metering Plugs and the Heat Shield

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to update the temperature limits. (18VC332)

Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:0AM53
Tool Number:IAE 1F10027
Tool Name:IAE 1F10027 Heater control unit
Manufacturer Code:0AM53
Tool Number:IAE 1P16010
Tool Name:IAE 1P16010 Fixture
Manufacturer Code:0AM53
Tool Number:IAE 1P16039
Tool Name:IAE 1P16039 Heater
Manufacturer Code:0AM53
Tool Number:IAE 1P16063
Tool Name:IAE 1P16063 Fixture
Manufacturer Code:0AM53
Tool Number:IAE 1P16140
Tool Name:IAE 1P16140 Support base
Manufacturer Code:0AM53
Tool Number:IAE 1P16166
Tool Name:IAE 1P16166 Base plate
Manufacturer Code:0AM53
Tool Number:IAE 1P16366
Tool Name:IAE 1P16366 Fixture
Manufacturer Code:0AM53
Tool Number:IAE 1P17026
Tool Name:IAE 1P17026 Lift fixture